How US immigration law can be improved by applying the permanent bar more often and in which situations?

Imagine the illegal invasion in US is stopped by creating a rule to apply often and permanently eliminating the illegal aliens from entering. Obviously, some aliens never learn and why not the permanent bar to be applied after the first criminal attempt. Just to skip the other bars, what do you think? Do we have to look this from immigration prospective or from civil law prospective? I would like your best detailed explanation. Thank you a lot to contribute to this forum for a better future!!How US immigration law can be improved by applying the permanent bar more often and in which situations?
Bars and bans only affect those that would immigrate legally. They have no effect on the real problem when people can just walk in at will and blend into a system that does little to ferret them out.How US immigration law can be improved by applying the permanent bar more often and in which situations?
In reality although the 3 and 10 year bans sound like they have time limits. Those people will not get in again.



For example a british person who overstays and gets a 3 year ban is not ever going to be allowed back in the US. At least on any type of tourist visa.