That argument is very easy to dispense with: There is not a single valid reason to use google fonts that justifies the privacy invasion aspects. So don’t use them. Period. I’ve already said that. Yet it is quite the fad/fetish lately, which shows the mindset of average webmasters.
"inefficient and buggy and slower for the user if you host all your basic libraries like jquery.js…"
That’s like saying that it is too much a bother to lock your doors, or to use an AntiVirus. Or to update software with security fixes, which is what Equifax figured and that’s how millions of people are now subject to identity theft.
" taking advantage of googls free content delivery network"
google is more taking advantage of you, or rather every user of every site that you create. That’s now they got so filthy rich, by offering in effect what are small bribes for “convenience” in return for betraying users’ privacy to google.
"getting rid of google completely is not going to be possible or feasible"
It is entirely possible. Why do you make such statements? Eff.org does it as they value the privacy of their users over convenience.
As for you trusting google, that gets to the heart of this. I don’t trust them for 1 second. I don’t know why anyone would. Because they have ‘bring your pet to work day’? Because of their ‘don’t do evil’ slogan which they violate all the time? Their history of click fraud? Cooperating with censorship by the Chinese dictatorship? What makes the rapacious mega corporations of big tech so trustworthy in your eyes?