If u can get it and u are no good handling them..... Just send them to SPCA which have experience in handling them. U can always adopt them back when it is healthy enough
Do put some donation.

BTW this my new Grooming tool Furminator

aRbS

For long hair cat it will not make the hair short, this comb just use to remove this dead hair which stuck in between.
This purpose is to reduce hairball when cat lick themself and also u will find the color and line look more clear/better after comb

Exactly sometimes is not the food fault. Long fur type will obviously drop more fur than normal one... Even u look at my cat which is medium type also i can comb that much fur out from just abt 15-20 minute
Ur one i believe will more scary than my cat hahaha
But you don't need worry that much, as long as the fur drop is not drop until u can saw the skin than that not a serious problem. Just a normal fur drop only.

      With that tool, sure can!

Why not do some study on raw feeding to cat as well?