It only took 19 terrorist to kill over 3000 Americans and change the USA forever. Biden has probably let in thousands of possible terrorists!
Recall John Allen Muhammad and Lee Boyd Malvo?
The east coast snipers who brought that part of the country to a standstill for weeks.
Now imagine what havoc and death 50, 100 or 300 trained motivated people could do with planned targets. They could lock down this country and cause total widespread chaos for many months or longer...
Fixed it for you. If this is not treason; I don't know what is.