I find it interesting that William Shatner hasn’t made any kind of hateful, insulting, or condescending remarks about George Takei that I can find. He’s only responded to remarks by George. George Takei on the other hand, has said so many hateful, insulting, and condescending remarks about William Shatner to anyone who will listen.
Shatner admits to being an actor and not being best friends with these guys, he did his part, said his lines, and moved on. He did have a good relationship with Deforest Kelly and Leonard Nimoy, the latter seemed to fall apart just before Nimoy’s death. To this day, it seems that Shatner doesn’t understand why.
When it comes to these guys, it seems to me that the one slinging mud (Takei), is the one being petty.