“Hominids did not wear clothing; with thick fur, they did not need clothing. So how did they get from that to no fur and having to have needles and thread???”
Whenever a feature disappears it is because that not having that feature became advantageous. For example, if the climate became warmer or the hominids migrated to a warmer area, bare skin would be more efficient for cooling. Full-body sweating, as we do, doesn’t work well when you are completely covered by fur.
There is one thing that humans have done for which lack of fur would be an advantage: using fire, particularly in open/windy areas. That is, an incident which might cause a minor burn to a human could easily light a neandewrthal or some other hominid up like a torch and fry him. Humans were designed to use fire, that had nothing to do with evolution or any other kind of junk science.