A lot of the stress is manifested by the police themselves (which is an issue specifically called out by the "defund the police" movement, e.g., mental health crises when the better path is deescalation by trained mental health workers)
Yeah they stopped going on calls unless cops were present because they kept getting injured or used as hostages.
Please cite your sources (or any evidence at all) if you're going to make statements like that.
It seems you're proposing that the only sensible option is always more cops.