Which sentence from paragraph 6 has the least objective tone?

(6) Ultimately, that's what our democracy demands. It needs you. Not just when there's an election, not just when your own narrow interest is at stake, but over the full span of a lifetime. If you're tired of arguing with strangers on the Internet, try to talk with one in real life. If something needs fixing, lace up your shoes and do some organizing. If you're disappointed by your elected officials, grab a clipboard, get some signatures, and run for office yourself. Show up. Dive in. Persevere. Sometimes you'll win. Sometimes you'll lose. Presuming a reservoir of goodness in others can be a risk, and there will be times when the process disappoints you. But for those of us fortunate enough to have been a part of this work, to see it up close, let me tell you, it can energize and inspire. And more often than not, your faith in America – and in Americans – will be confirmed. . . .
1. Ultimately, that's what our democracy demands.
2. If something needs fixing, lace up your shoes and do some organizing.
3. Presuming a reservoir of goodness in others can be a risk, and there will be times when the process disappoints you.
4.But for those of us fortunate enough to have been a part of this work, to see it up close, let me tell you, it can energize and inspire.