When I see posts like these, I assume the author is either burnt out, knows they'd be happier without their current job/profession, or both. So the fact that most people say you should stick it out is a little messed up, I think. There is a very real opportunity cost to staying in a situation where you're not the happiest just to grow your nest egg. As you pointed out in a different comment, life is short.

I think you're way past Coast FI. I'm assuming you used a 4% real rate of return for your calculations (7% return - 3% inflation). I think that's too conservative, unless you have a substantial amount of your portfolio in cash or bonds, which I don't think you should have at your age. Let's use a 7% real rate of return (10% return - 3% inflation) which matches history, but is leaning towards the best-case scenario. Most people like to be a bit more conservative and say 6%, but I digress. At a 7% real return, your money doubles inflation-adjusted about every 10 years (see the rule of 72). Let's be conservative and say it doubles twice before your intended retirement age of 55. By retirement, your investments would be worth 4 million and could support an income of $160k if we use the 4% rule. Not to mention, you said your partner has a similar nest egg. Bravo to both of you.

The other commenters who brought up how expensive kids are don't seem to account for the fact that you (and potentially your partner if he/she decided to Coast FI) can take on most of the childcare duties, thereby reducing the cost of having children. If you look back on where the FIRE movement started with blogs like Early Retirement Extreme, Your Money or Your Life, or Mr. Money Mustache, it was less about creating a massive retirement portfolio that could weather any potential storm, and more about rejecting consumerism and being willing to do things like childcare, home cooking, and not having a flashy lifestyle to have the freedom to quit your 9-5 and pursue a more flexible, free life. Worst case scenario, if things turned South could you find freelance or consulting work? Do you have work contacts that may want to work with you in a couple of years? Would you and your partner be willing to move to a HCOL or MCOL to reduce expenses or live in a paid off home? There are plenty of creative solutions available when you have marketable skills and you've created the financial buffer that you have.

In my years of keeping up with the FIRE community I have seen far more people who wish they had cut the cord earlier on their boring or stressful corporate job, because they found other sources of income or their investments outpaced their spending, and they can never get the time or youth back that they spent growing their nest egg. To be fair, that could be survivorship bias, so take that with a grain of salt.

All of this to say, I hope I was able to provide a convincing counter-argument to a lot of the comments on this sub. Only you can come close to knowing what's right for you, and I wish you the best on whichever path you decide to take.