Yep, 100% I got it wrong, gene flow is the correct term.

I used the 100k year wolf bc that's what OP said, I agree that wolves were domesticated, eventually resulting in canis familiaris more than 10k years ago. It's tough to pin down a date bc it happened at different rates across different continents. 30k is a date I'm mostly happy with, but I'd like more data (am scientist, always want more data).

I'd like to see more widespread and genetically diverse wolf populations before we start doing hybridization research. I don't think we should be breeding wolf dogs for like 85 reasons. Lets do a great job caring for the ones we have and start legislating against backyard breeders bc 98% of humans are not going to do a competent job raising them.

Side note: I think an expanding population of coyote-wolf hybrids would be very interesting. Lots of good adaptations from both, and a good possibility for inter species cooperation. But there might be a big possibility that they would be very comfortable in urban and suburban environments, which ends with a lot of dead pets and children

There is some amount of genetic drift between wolves and domestic dogs, but it's not a lot. They don't have many opportunities to reproduce, survive to adolescence, and breed again. Their habitats don't have a lot of overlap. You see more genetic drift with wolves and coyotes, since there are many places in the wild where their habitats overlap. Unfortunately, wolves prey on coyotes kind of a lot. And it's usually a "gang territory" thing and not a "oh look food" kind of thing.

Almost any mammal if raised from infancy can be "tamed", including wolves from 100k years ago. Dolphins, orcas, and elephants enjoy cooperating with humans, and have done so for a very long time, but keeping one as a "pet" would probably not go well. Raising and living with wolves is a very difficult task. A person who adopts a full wolf, without having raised wolf hybrids or other large wild canids, is an absolute moron. It's like a velociraptor. Very intelligent, needs tons of physical and intellectual stimulation, will absolutely it's escape it's enclosure, loves cooperating with pack mates, and will be relatively unpredictable when introduced to new animal friends. They need a ton of space and a very specific diet. The huge plus side to owning a wolf hybrid is that it's usually just a very large Husky-shepherd mix, with maybe 10% wolf genes.

No, hot spot volcanism is due to a singular active plume within the mantle. Why/if there is a singular active plume of hotter material I can't really guess at. But to get a magnetic field (usually, usually) you would need some kind of consistent motion in a liquid iron (outer) core. I say usually bc there are planets with induced magnetic fields e.g. Mercury, some moons of Jupiter