It means: 1) publicly condemn the government 2) recognize that this government doesn't represent the people of Iran 3) don't give money to this government.
And I doubt those folks are going to change their mind over what’s going on.
>I am worried this tyrannical government succeeds in putting down this movement and then the western governments sign another nuclear treaty which means sanction relief and more money for the regime
Iran trades with Turkey, Pakistan, the U.A.E., Germany, India, Kuwait and Qatar [1].
[1] https://oec.world/en/profile/country/irn/?flowSelector1=flow...