New Dream Job Asking for All of my Time. Not worth it.

Well.. I’ve been working in a specific industry for several years.. I recently had an offer to join one of the largest company’s in this industry and I quickly over a few months have found myself in a position where I notice my supervisor is working on weekends, until 8,9,10 at night .. then she’s reaching out again at 5am… I recently had covid and there was zero excuse to stop working even when I expressed a need to take a day off to actually go to the hospital. It was still implied that I would be completing work that day… I also couldn’t take a last minute meeting at 6pm at night well because I had plans to pick up my kids.. I received an email the next day with the intro saying “hope you had a fun family filled evening with your kids”…. I’m starting to get concerned that yikes! This may not be a fit despite it being a long term goal. Like the salary is literally half of what I’ve had in the past.. it’s way not worth it lol… I guess I’m looking for some advice or reassurance. Should I just do my best while maintaining my boundaries until it doesnt work out? Should I make moves to get out? Anyone had similar experiences?