Acer in trouble

Last Autumn, one half the Acer had suddenly wilted leaves literally over night. I wonder if this (in almost white) is a disease in relation. I checked the RHS website and I can’t really find similar issues to my one.
Would you take the entire tree out?
It doesn’t look good to me. There are 5 branches like that and looks like spreading to other branches.
Thanks for your advice.

 

It just looks like some die back to me.
I'd prune it out although might be a bit late now as it may bleed.

 

Thanks @pete
I had looked at all illnesses but couldn’t find a picture that showed what I have.
There are more parts affected and some parts turn black.
I take the tree out.

 

Your description bears similarities with Verticillium Wilt - something acers are prone to.
If some of the branches have black 'bruises' on them, that would confirm it.
I have one with it.

 

@Pete8 That’s what I looked at the rhs website.
I will take it out now. I don’t want to get spread over the garden.

 

In the picture it looks like natural dieback. Maples are famous for it, especially when the branch is shaded. My acers, in full sun (they weren't when they were planted but the neighbour took out there large tree) had more dieback than normal last year, likely because of the dry weather.

I would try and get some more pictures for an id before I removed it as the rest looks pretty healthy from what I can see.

 

@Thevictorian I have already taken out it. A closer look outside the dark corner revealed that the infection affected most parts of the tree and the stem was half black. I don’t want that it spreads to other shrubs and trees. Hopefully I come away with my drastic step.
There was in neighbour’s garden an Ash tree taken down in 2020 because of ash dieback. I wonder if it came from there. Or the drought last year made it too weak.


Thanks to all for your advice