I would hope no action or inaction would be based on any concern about this. If law enforcement can't or won't put a stop to it we do have National Guard. President Trump needs to make decisions based on their merit, not whether or not there may be protests or violence as a result.
Not losing control of either house of Congress and hopefully gaining a wider majority is in fact far more important than when a suit is filed especially when those who would be targeted by it can keep such a suit from moving along at anything other than a snail's pace.
I wasn't implying Trump was slinking away from any decision he feels it is important to make nor would I ever imply that. The fact is it's better to wait than to jump on such a suit right away unless there's some reason to believe that doing so won't help the democrat machine in November.
Of course, if you like the idea of the anti-Trump machine having their base turn out in larger numbers this November . . .