Google removed adblock from the Play store because it interferes with the functionality of other apps and that is against the Developer Terms of Service. However, they dont prevent you from sideloading it.
There is no human right to use all software on whatever terms you think are reasonable.
I dont judge you for blocking ads, but please dont pretend that blocking is the moral high ground.
If an app is too invasive in what permissions they ask for, then leave a bad review, uninstall it, email the dev/publisher and say why.
Boycott -- this is the moral high ground. Bad devs will never learn to temper behavior unless you actually walk away (uninstall).
FWIW, none of the apps I have developed contain any tracking or advertising at all.