Vivek and Scott are not a thread and Trump knows it.
The former is his acolyte, and the latter isn't a threat to Trump.
I don't even know if the harpies following DeSantis around are paid or not. Trump has enough Loomer types on his side who would do it for the cause. The real danger is if one of them decides to it too far and there are some Trump followers who likely are.
"If you will not fight for right when you can easily win without blood shed; if you will not fight when your victory is sure and not too costly; you may come to the moment when you will have to fight with all the odds against you and only a precarious chance of survival. There may even be a worse case. You may have to fight when there is no hope of victory, because it is better to perish than to live as slaves." - Sir Winston Churchill