Considering withdrawing my Roth Basis

I'm 27 and have a weird fact pattern. In four-ish years of employment I've saved tremendously into my tax advantaged accounts, rolled them at each job change, and made really well performing market moves to get to a Roth IRA balance today at 350k. From this point my primary goal is to reduce my taxable liability into traditional accounts to have a diversified tax base to draw from, but I'm also considering if I should be trimming my Roth contributions out of my account and into a taxable brokerage account. This would be to the tune of ~100k. The reason I would do this is to have further diversity of investment classes for exceptional purchases (a house for myself or my parents, in particular), even knowing that withdrawal would both hamper my tax free balance later in life and any true divestment would undoubtedly perform worse than my investments. In this calendar year, I've easily exceeded any regular metric of growth for my accounts, and withdrawing my contribution basis would still have my YTD change in balance exceed expectations. By removing that amount to a taxable brokerage account, it allows my non-penalty and non-ordinary pool of accessible earnings to continue to grow. Are there things I'm missing in this consideration? I've looked into a variety of early withdrawal mechanics for the Roth account including 72T for when it surpasses 1-2mil in the future, but those would only circumvent the penalty and not ordinary income rates. I expect to become disabled in the next decade but I don't want to depend on that as a means of accessing my funds. Thank you for any advice.