No need to trash him as he's done a thorough job of trashing himself by joining this latest Democrat ruse to try and grant amnesty to 15 - 20 million illegal aliens. Almost everything about this latest amnesty ruse has been deceitful and dishonest, and especially those absurd radio ads Rubio participated in that have run for weeks.
Anyone who aids a scheme that, if successful (from the “progressives” point of view), will literally spell the end of America as founded and as its citizens have known it for 237 years, and deliver a permanent ‘rat majority,deserves whatever opprobrium that generates. The only way that Rubio could redeem himself would be to actively work against it and that probably would not be enough because it would be too little/too late..