Originally Posted by
well biked
FWIW, A23's are very wide road rims, relatively speaking, as are most "tubeless ready" road rims. The "23" in the name is for the outside width; inner width is 19mm I believe.
In that case, there should be plenty of width for the valve in the "narrows" between the beads. Something else must be going on, but it's not like we can see it from here.
Possibly the OP's double wrap of tape is crowding the seating area. So many of these kinds of issues are instantly recognizable with parts in your hands, but without that it's just throwing crap against the wall to see what sticks.