We really need to push back on the widespread idea that "activites" like the attacks on Iran are to be challenged by a War Powers Act. No, it's the opposite.
It's not that presidents can conduct war unless stopped by a vote, but that they need to vote of permission to start.
Without congressional approval Trump and top military brass are already acting unconstitutionally. They have already crossed the line (as in many places in the past) into impeachment territory.
But the common framing as no vote = no rejection shields him politically.
Second point, though: keep in mind that key figures in this administration simply follow the crowd of a wave of ignorant conservative blowhards. They literally don't know how government works or facts on the ground, damage they're causing.
Yes, they're war crimes, but not part of any strategic scheme. Just a bunch of idiots too oblivious to know what they're doing.