I'd encourage you to read the entire letter alongside its context. The reason I link to the letter and not the quote is because the quote, relevant and insightful though it may be, is made exponentially more so by understanding the context in which it was said.

Here's a quiz for understanding: what did Jefferson think of the 'revolutionaries' of whose actions he's directly defending?

The tree of Liberty must be refreshed with the blood of patriots and tyrants is true, that is literally spoken by a founder of the country and person who penned the country's founding document. It is a belief that you materially benefit from but deny. You have so much privilege but deny it's genesis.

You believe in the product of Locke's philosophy, but deny its requirements.

Tyranny is the result of consolidated power. Tyrants aren't going to respond to "please give up your power" or "please follow the law" peacefully. If you challenge power, power will respond. The freedom of speech exists precisely because saying something tyrants don't like will result in tyrants trying to punish you for your speech. Freedom of speech exists in order to protect speaking truth to power because power doesn't like truth spoken to it.

Freedom is solidarity. Solidarity is its price. The word solidarity itself is important to reflect on, because it is solidarity against a force that seeks to break the solidarity by harming individuals acting in solidarity. Labor rights and protection for freedoms were hard won, many individuals were harmed earning them. This country that you enjoy was the result of a revolutionary and civil war.

This is the language the country was literally founded on. This is where the rights you enjoy being protected come from:

These are the times that try men's souls. The summer soldier and the sunshine patriot will, in this crisis, shrink from the service of their country; but he that stands by it now, deserves the love and thanks of man and woman. Tyranny, like hell, is not easily conquered; yet we have this consolation with us, that the harder the conflict, the more glorious the triumph. What we obtain too cheap, we esteem too lightly: it is dearness only that gives every thing its value. Heaven knows how to put a proper price upon its goods; and it would be strange indeed if so celestial an article as freedom should not be highly rated. Britain, with an army to enforce her tyranny, has declared that she has a right (not only to tax) but "to bind us in all cases whatsoever" and if being bound in that manner, is not slavery, then is there not such a thing as slavery upon earth.

> Spend a month in Syria, Libya, or Sudan and then tell me that you support civil war

What do you think makes people fight in a war? Why are Ukrainians fighting in what, if you accept Putin's framing, is a civil war?