... tell people that they're wasting their efforts, ...

It's not at all wrong to be realistic about the relative impact of a given effort. Hell, even marching daily isn't going to be very impactful. Remember Occupy Wall Street? How long did that go on, and who even really things about it now? Did it effect real change? Based on what we see today, I'm going to say no.

Does that make those efforts "wasted"?

The fact is that nothing an specific individual does today is going to have any effect at all, by itself, today. The cumulative efforts of many people, over time, might. Big picture, one person's marching on their capitol every day is going to have essentially the same effect as participating in this one-day spending freeze.

... feel free to criticize me ...

I haven't. I disagree with the particular tactic you've expressed, because, as I said, I think that gatekeeping participation is counterproductive.

So anything less than full endorsement is opposition?

Feel free to point out where I said that. Again, what I think is that telling people who want to get involved in a way they are able to is counterproductive.

First off we're leftists ...

I don't know who you mean by "we," and it depends on what your definition of "leftist" is. I've seen lots of tankies wearing that name proudly, and fuck them.

... happy feel good platitudes ...

I know I've said, perhaps not so clearly in this thread, that the efforts one individual makes are unlikely to produce recognizable results any time in the near future. I think that people have been conditioned to expect instant gratification, and I don't think that's something that will happen here. No matter what actions you take, you're highly unlikely to receive any gratification from them in the form of "things are better." There's an unhappy feel bad platitude for you.

And I will continue to encourage useful collective actions ...

I hope you do. All efforts, great and small.