There is evidence that guards were replaced when they get too close to the girls. Since they were isolated and kept from society, the only emotional outlets are the guards and they often led into unequal unions. Their Aunt Olga Alexandrovna was the prime example. Ernst of Hesse thinks Nicholas II was weak by saying that he was a nice man but don't know how to handle his sister. So the ideal image of the Imperial Family came crashing down. By the time of the revolution nobody in the Imperial family respects them.
The list.
Miechen
Sandro & Xenia
Olga of Greece
Missy
Kyrill & Victoria
Marie of Greece
Count Witte
Grand Duke Paul & his wife
Grand Duke Nicholas
Princess Yussopov.
Almost your identical list on those who "respected" Serge.
Although KR indicated that he lost his respect for Serge after the coronation disaster in Moscow.
As did Sandro and his brothers who walked out of the French Ball.
Don't think Dowager Empress Marie was too fond of Serge either.
KR did not say that he lost respect for Serge after the coronation disaster. What he wrote was; "Of course, Sergei is not personally responsible... however, it is his fault he is being showered with accusations"--i.e., Serge did not go to scene of incident & proceeded with the French ball. (Ulimately, it was the Emperor's decision to attend.) As a result KR remarked "(Serge) has not acted in the way I consider he should." This greived KR because "I love him dearly."
KR remained a confidant & a fast friend of the Grand Duke Serge to the last.
KR, quote 1905 assassination: "As if struck by lightening, for the first minutes I could not take anything in. I went to say goodby to Mama. She is never told any bad news. It was only as I was leaving her that I realized what I had lost, and burst into tears. I must prepare my wife--she loved Sergei so much."
Marie Pavlovna on her uncle the Grand Duke Serge: "Those few who knew him well were deeply devoted to him."
Where does the Dowager Empress Marie specifically state that she did not like the Grand Duke Sergei?
Hardly a new revelation that Nicholas was "weak" when it came to curbing the excesses of Alexandra.
The "List" names may have lost respect for Nicholas as Tsar, but none on that list denied the conjugal love Nicholas & Alexandra felt for one another, or the respect & devotion the children had for their parents.
That the Grand Duchess Marie was conjectured "boycotted" in 1918 by her family is absurd. Where is the evidence?
Nicholas & his family's royal letters, diaries, & the first hand testimony of their Romanov relations, friends, and staff are more to be credited than contemporay revisionist authors peddling snide "modern psychological testing" (suppositions), glaring factual errors, secondary sourcing--not first hand, rudimentary notes making it difficult to validate those stories, no apparent new archival research,--ditto indeterminate chronology, etc.
"Isolated & kept from society....Their Aunt Olga Alexandrovich was a prime example."
Whether kept from society OR NO--the Romnaov family was replete with "unequal unions". Misalliances were not a proclivity restricted to the mother dominated & isolated Olga Alexandrovna.
Examples: Alexandra critics "Missy"of Rumania & George V's in no way isolated or shielded their sons from society, i.e.,-- King Carol of Rumania, Prince Nicholas of Rumania, & Edward V111 of England,--AND ALL cultivated a major taste for "unequal unions".
As did (In one form or another):
Alexander 11
Grand Duke Constantine Nicholavich
Grand Duke Alexis Alexandrovich
Grand Duke Nicholas Constantinovich
Grand Duke Nicholas Michaelovich
Grand Duke Michael Michaelovich
"Sandro" Michaelovich (In exile)
Grand Duchess Anastasia Michaelovich (Informally)
Grand Duke Paul Alexandrovich
Grand Duke Boris Vladimirovich
Grand Duke Andrea Vladimirovich
Grand Duke Michael Alexandrovich
Grand Duke Dimitri Pavlovich
Marie Pavlovna
Elizabeth of Rumania (informally)
Princess Marie of Greece
...........etc.
Nor did Nicholas 11 grant permission for Kyril to marry his divorced first cousin Victoria Melita. Not an "unequal" match--but not permitted by the laws of the Russian Orthodox Church.
OTMA died devout & respected young women in the eyes of their Emperor & the Russian Orthodox Church. Don't conjecture to defile their memory.