Thread Sealant for Coolant Parts?

I like using high temp RTV. I don't get why people are so damned hard headed about this. You ask advice and get 100 different answers about 100 different things to use on each individual part like pipe threads, bolts, freeze plugs and everything else that needs sealant......when guess what? High temp RTV on every single thing on an engine that needs to be sealed. ONE product. But hay, people still use Gaskacinch, teflon tape, liquid teflon, shellac, Indian Head, and on and on and on. One product for each different thing when one product for all will work and in most cases work better. Makes zero sense to me.