Why is the word "democracy" not in the preamble of the US Constitution?

In other words, our Founding Fathers and other Whig intellects of that time well understood that democratic methods are the surefire means to do serious damage to the rights guaranteed under republican self-government.

I do not say that democracy has been more pernicious on the whole, and in the long run, than monarchy or aristocracy. Democracy has never been and never can be so durable as aristocracy or monarchy; but while it lasts, it is more bloody than either.

—Alexis de Tocqueville

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Why? Try these on for size:

To slaves: “You can forget your notions of freedom. We voted fair and square and your side lost.”

Majority-rules democracy is the way that majorities run roughshod over minorities, destroying rights and all ideas of equality under the law. No fair-minded person wants anything to do with democracy.

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Meanwhile, when the Democratic Party formed in 1828, it was with a Tory outlook keen on robbing others of their rights:

—Benjamin Franklin

The republican is the only form of government which is not eternally at open or secret war with the rights of mankind.

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To blacks: “You can’t drink from that water fountain… eat in this cafeteria… ride this bus… go to this school. We voted fair and square and your side lost.

—John Adams

Another tendency, which is extremely natural to democratic nations and extremely dangerous, is that which leads them to despise and undervalue the rights of private persons.

Why cant I sleep on my side after getting my covid vaccine? I just got the shot and I’ve been overstimulated from not being able to sleep, my arm is very sore and it hurts so much to move and I just want to sleep but it hurts if I lay on either side

—Thomas Jefferson

To Indians: “Pack up what belongings you can carry and start walking to Oklahoma. Your fertile lands are ours now. We voted fair and square and your side lost.”

When the people find they can vote themselves money, that will herald the end of the republic.

What do you think about the NFA full auto band? Weapons built before 1986 can be transferred and registered? But we can't have an 87? But older weapons tend to be far more powerful. I think we should drop it. Input?

[with republicanism being the rights-protecting form of governance afforded us by our Constitution]