Like, legit locked out.

1st then reverse, still no go. Pop clutch to spin flywheel, no go. Ram it like mad, no go. No grinding, I'm just ramming teeth against teeth, so I have to lurch it forward real quick and grind it into reverse while moving forward.

2018, 13,000km, dealer is far away so willing to home remedy.

What's the guess for what is happening? Just cheap ass transmission? Or is something amiss.