I don't understand why you want to kill so many of our own infantry?
That, I'll buy.
But you do know that the cavalry and the infantry work together and that the artillery system supports them both simultaneously. We need to switch from one to the other in a heartbeat.
Sometime I think we are being too influenced by Ukraine's version of trench warfare. We need to be prepared for that and other scenarios as well. These days 81s and 105s only work in very narrow ones. 120s and 155s are much more flexible.