I have 2 phones that are practically useless for daily use: iPhone XS and iPhone X - my iPhone XS face id stopped working after bigger moisture in SE Asia, my s

I have 2 phones that are practically useless for daily use: iPhone XS and iPhone X - my iPhone XS face id stopped working after bigger moisture in SE Asia, my sister iPhone X screen was broken and after screen replacement also face id stopped working. Authorised apple repair shops quoted ~300 euro for face id replacement - with a caveat that if they detect any moisture they won't fix it at all. For that price I can buy any of those phones second hand. Unauthorised shops told me they have no way to replace face id. With android phones at least you can unlock your phone not with pin code but with gesture or unlock with cheap smart mi band. I knew apple watch can be used to unlock your phone but it WONT work if you face id or touch id IS broken. So all those phones are just sitting on a shelf and I use one just for app testing. With apple serialising parts I think things are just getting worse, not better - what's the point when you are forced to buy genuine parts from apple (instead of genuine but from donor devices) and still have to go through authorised repair shop and this is economically just not worth it? What's the point of your 'right to repair' but you have to pay 50-100% of you (second-hand) device price?