Hundreds of BLM and other leftist agitators didn't storm the stage as they did with Trump's rally in Chicago before he cancelled. Instead Ted Cruz invited one of them up, and yes, he did nail them to the wall.
Still not the same that Trump has been facing.
If this had happened to Cruz, debating them isn't going to work. They are going to overwhelm him and his SS protection will cancel and get him out of there.
So, your comparison is totally specious.
The plan in Chicago was for 20 of them to rush the stage