Obstructive and disruptive are intensely subjective labels. Anyone who doesn't get what they want can say "oh, I should've gotten it, but I was disrupted and obstructed and that was very unfair". As an American, Brexit really drove this point home for me; the two largest British parties have both been insisting for years now that they're trying to drive Brexit forwards but the other side is unfairly obstructing them.

"Criminal" is less subjective, but I just don't think it's true. I'm unaware of any kind of criminal behavior that Republicans get accused of but Democrats don't.