Since Uranus rules the unconventional, what’s different about us, this planet also rules rebellion. So the causes we champion with Uranus can be causes that we’re willing to be the rebel for. We can be less afraid of violating social norms. Uranus wants us to challenge them!
Transit Uranus might bring this out for you temporarily. Uranus goes through one of your natal houses for about 6-10 years (depending on the size of the house). You may become focused on the causes related to that house for that period of time.
You can be more open with the causes you pursue with Uranus in the 1st or 11th house, conjunct (aligned with) or positively aspecting your Sun, Moon, Mercury, 1st house ruler, or Lunar Nodes, or with an especially elevated Uranus (like a singleton, anaretic, or conjunct an angle).
You may be quieter with the causes you pursue with Uranus in the 12th house, conjunct the 12th house ruler, or if Uranus is particularly challenged (like intercepted, square your Lunar Nodes, or conjunct Chiron [which may show some wounds you need to work through first, but can eventually make you very good at standing up for others who need it]).
And take special note if your natal Uranus is aspecting your natal Black Moon Lilith (which loves to take a stand) – then you may be a super rebel who loves to fight for a cause! (transit Uranus to your natal Black Moon Lilith or transit Black Moon Lilith to your natal Uranus may also bring this out, but temporarily)
Suggested Reading: Being Charitable: The 11th House & Asteroid Santa