Hard disagree.

The cartoons from this era were already being censored, revised, or simply not shown on TV by the time WB started releasing them on disc.

Gags were being cut because they contained guns, or because something blowing up in somebody's face left them looking like they were doing blackface. These cartoons became disjointed and nonsensical because of the missing bits.

MGM's Tom and Jerry cartoons had a recurring character, a black maid, only depicted from the waist down, based on Hattie McDaniel, the maid in Gone With the Wind.

Somebody determined that the voice of the maid was racist, despite the fact Hattie McDaniel actually talked like this. The depiction of the way an actual black woman of the era talked was considered racist, so they overdubbed her voice with a "modern" sounding black woman that was obnoxious and distracting because the audio quality was completely different.

At the time these were released, they were (and still are, AFAIK) the only way to see the complete, uncensored versions of these cartoons. If they were truly capitulating, there would be no warning, they would have just silently continued with the censorship and revisionism that was already happening.