It's pedantic to just come back and say you need to look up what democracy is supposed to be (though you do), but you probably won't so I'll give you two sentences about what ours is here: we have a democratically elected government wherein three coequal branches of government share power. This was done to avoid what you'd like - which is a tyranny of the majority. Our system makes it impossible for 51 people to tell 49 others how to live. Sorry about it, but your misconception of this as anti-democratic is uncompelling.
Likewise, appeals to what "polls" show Americans want are lackluster arguments. The only poll that matters is the one that takes place at the ballot box on voting day. Most Americans (including me up until last week) don't even know what Roe v Wade actually established. Spoiler alert, I looked it up, and Roe v Wade did not establish a woman had a right to choose to have an abortion. Roe v Wade held the following:
It's amazing what you can learn when you read the actual decisions. In practice, this may be implemented in a manner that allows a woman to tell her physician that she needs an abortion and be granted one, but the case does not establish a "woman's right to choose." It absolutely does no such thing. So polls about subjects Americans have no, or limited, or misinformed levels of understanding can be safely disregarded.
And more than that, the court is supposed to call balls and strikes; to keep the legislature and executive branches in check - not to express the will of the people. Seriously, I can't believe this has to even be stated, let alone defended.
Read up on what the difference is between due process and substantive due process is. They deal with two esoteric legal concepts. I included the relevant text from Thomas' opinion since you are either haven't read, are misapprehending the case, or intentionally misconstruing it to support your viewpoint.
Thomas isn't saying birth control should be made illegal. He's saying the basis upon which that case, and others like it, was decided needs to be re-evaluated. You can disagree about that, but there it is for you in black and white.
On Griswold specifically, Connecticut was the only state in the union that had outlawed contraception, so that case really was about bringing an outlier back into line with the "thrust" of the rest of the country. Hence, gasping about how this case is somehow now endangered ignores both the historical context (49 to 1) and the temporal reality that it was decided before Roe (1965). Duh!
Finally, the liberal dissent from the opinion is farcical. Out of one corner of their mouth, they lament that the majority in Dobbs reads history "all the way back to the 13th century (the 13th!)," while simultaneously, they ignore the fact that the case which kicked off this whole thing, Roe, in fact discussed Aristotelian philosophy, the Pythagorean school, ancient Jewish tradition, etc...in short, they need to get real. They are completely disingenuous and insincere in their overall approach to this case. Also note their parenthetical exclamation. It reads more like an activist's polemic than it does a serious legal treatise seeking to deal fairly with the law and the majority opinion.