Im proud I still never bought anything from Amazon (except indirectly their stock ... which just as bad, but super hard/expensive to avoid - at last until they dont give it a dogshit ESG score).
Don't feel bad about owning their stock, as you say they're basically in every big ETF, and the price discovery mechanisms for ETFs are lousy anyway so you never affected their shareholder value in any case.
Yeah, its weird, I was kinda tech oriented anyway, but now just by market weight a few stocks with pretty stellar few years of growth hold kinda a lot of concentration risk. Especially funny, bcs eg nVidia isn't as widely known relatively to how big it has gotten (market cap).