If you really believe that doing the "extreme vetting" is necessary for your security, then you have some form of "islamophobia". Just look at the numbers: The number of ISIS soldiers is in the thousands. There is more than 1 billion muslim, though.
The probability of the guy being extremely vetted is a terrorist is a ridiculous 0.000001%. That doesn't take into account that a good number of terrorists are already known, are in war, locked in jail cells or have no passports/documents.
This probability is also probably lower than the guy being from a visa-waiver country where the guy happen to be mentally unstable and go on a killing spree. In both cases, your extreme vetting is very unlikely to detect the bad guy.
However, here is the thing. By alienating the population to the "dangers of islam", you are further separating these people from the American communities and not helping them getting integrated. This will, in the long run, backfires badly as it creates huge "muslim neighbour-hoods" that are not compatible with the fabrics of American society. France is a good example.
The probability of the guy being extremely vetted is a terrorist is a ridiculous 0.000001%. That doesn't take into account that a good number of terrorists are already known, are in war, locked in jail cells or have no passports/documents.
This probability is also probably lower than the guy being from a visa-waiver country where the guy happen to be mentally unstable and go on a killing spree. In both cases, your extreme vetting is very unlikely to detect the bad guy.
However, here is the thing. By alienating the population to the "dangers of islam", you are further separating these people from the American communities and not helping them getting integrated. This will, in the long run, backfires badly as it creates huge "muslim neighbour-hoods" that are not compatible with the fabrics of American society. France is a good example.