Jimny front wheel leaning in

Welcome to the forum. There's a few possible reasons none of which are particularly cheap, it could be a wheel bearing has collapsed or a king pin bearing collapsed but it's also possible that the axle is bent. If you lift the wheel off the floor and attempt to rock it up down front and back that will point you at one of the bearings depending on where you get movement. Finding a bent axle is somewhat more difficult as getting meaningful measurements is not easy for the home gamer. The thing is all these things are to varying degrees inevitable if using a Jimny hard off road.