If your bitcoin wallet is compromised, all your bitcoins are gone
forever. With a credit card, you have some chance of only minor
damage. If your computer is owned, your wallet is at risk.

This appears major problem for the widespread adoption of bitcoin
IMHO.

Fixing it appears to contradict decentralization, which opens another
can of "worms".

Potential approach is to use "trusted wallet proxy", but this may not
work in practice.

Are these concerns taken seriously?

Any technical attempts at mitigating cryptocurrency theft?