Boebert is an unqualified clown, but I think some of the opinions here are reflexive and hasty.
The Capitol Police are responsible to the legislative branch, meaning they answer directly to Congress, including the members in question here. This is not a normal police/citizen relationship, and it's why you're seeing these awkward interactions. A purposefully absurd analogy, but imagine metal detectors being installed outside your home because a mob rooted in your neighborhood.
As well, this is yet another example of the expanded security theater that we've seen continually encroach since 9/11. After the forced resignations of the USCP Chief and House Sergeant at Arms, visible evidence of action was desired. Metal detectors outside the House chamber will certainly buy you that.
But one horifically tragic incident and failure should not necessarily redefine procedures outside of the direct causes of said incident. Metal detectors outside the House chamber is akin to adding locks to the inner doors after the barbarians have stormed the castle. The failure was elsewhere. This is just an easily applied patch that serves as visible evidence that something is being done. And while I'm on the subject, I sure hope that fencing installed outside the Capitol grounds is temporary. The White House perimeter expansion, permenantly closing Pennsylvania Avenue, is a national tragedy.
The bottom line is, yes, it's a seemingly minor inconvenience. The Republicans are easy targets here because this lines up with their outsized entitlement; however, broken clocks and all that. I feel the same way about our airports and that particularly monstrous example of security theater.