Why Can’t We Travel Across the Bering Strait?

Okay this is a weird scenario but I’m going to have to go through it in a few years so thats why I’m asking. I’m hoping to study in Russia for my PhD in the future (I’m still in my undergrad so there’s quite a bit of time before then) but I don’t really want to fly over the Atlantic.

This is such a weird fear but when I go I want to bring my dogs with me, they’re a bit bigger which means they’d be forced into the luggage area, which sucks for very long flights (I’ve read too many horror stories). So I thought, hey, what if I just do a quick flight over the Bering strait into Siberia and then just take the train to Moscow? Sure, it’d be way longer but at least my dogs wouldn’t be stuck in cargo while flying over the ocean (I mean, what if we crashed? I may survive but its a death sentence for them). I’m even willing to take a boat (I have a huge fear of boats and thalassophobia) across the strait or pacific if it means I can keep my dogs close in the event of a disaster.

Unfortunately, when I looked at travel plans no passenger boats or planes are allowed over the strait, what?! I guess it may be due to governments hating each other but, damn, this really screws up my plans. Are there any other reason why we can’t travel via the strait? Will this rule ever change in the future? Also, even without the strait, every travel option wants to take me over the Atlantic/North Pole eastward and avoid going west at all costs, why is this?

Also, the only way I’d be able to take the Bering strait was if I smuggled myself and the dogs on a cargo ship, which is a hilarious image but I’m not willing to do that lol