This is the same trick Trump pulled on the Dems with DACA. As with jujitsu, he's using his opponent's weight and momentum against them.
The Dems will rush forward with all of their anti-gun wet dreams, all rolled into one, and Trump will step aside and watch them sail over the cliff.
I think it's a classic bait and switch.
You are assuming the Rats will roll all their most extreme measures into one big bill that is rejected. What if they instead put a few “reasonable” measures into one small bill and it passes the House and Senate?
Big mistake on Trump’s part. Yours too.