As long as they take down real bad guys and leave the rest alone, no problem
But that is the problem. The vast majority of Patriot Act laws are used against terrorists less than a fraction of one percent of the time. However, they have opened the floodgates against ordinary American citizens.
In effect it legitimized what had been highly illegal acts by government agencies, and not just against domestic criminals, but vast numbers of people with absolutely no suspicions against them.
And the truly aggravating parts of it all is that while they are desperate to destroy every shred of privacy and voyeuristically peer into the minutiae of every citizen’s life, real terrorists are easily evading them, often without even trying, their activities buried under a Mount Everest of data like how much toilet paper does a particular woman in the Midwest buy on a monthly basis.
And it costs hundreds of billions of dollars to accomplish the same as some local police detective.