You think it was bad that the tzar got Merced?
No. Definitely deserved, though trial would have been preferable.
The murder of the children, I do see as unforgivable, however. If they'd committed none of the crimes of their ancestors, it doesn't matter who they were, it was murdering children and should not be excused in any way.
The royal family encouraged pogroms.
Hereditary rule is itself something that is inherently unjust and it is right to put to an end. I don't know that there has ever been a royal family that did not commit crimes against humanity.
While the murder of the inheritors of the Romanov line is regrettable, it is in no way some "great crime".
I was not aware initially that the image was from the Romanovs. I took it to be a blithe dehumanization and calling for summary execution of bigots. That's a dark path to repeating the dehumanization and murder of allies, like anarchists, when it becomes politically expedient.
ETA: I like Hexbears for the leftist unity, taking protection of LGBTQ+ folks seriously, and generally welcoming and engaging conversation. I hope you understand why someone who identifies with anachro-syndicalism can get a bit jumpy when there's talk of "walls" and/or summary execution, considering history.