renewable energy technologies still require substantial upfront investments compared to fossil fuels.

Actually, let me help YOU out buddy. The upfront cost of renewable energy is nothing in comparison to the long term cost of continued fossil fuel usage. It's ultimately cheaper to fix the problem than to let it fester.

The existing energy infrastructure is designed for centralized fossil fuel power generation, making the intermittent nature of renewable energy sources a challenge

A challenge to which we have the solution. We have the tech to build nuclear reactors, the most reliable type of power, and we have reliable storage options that make intermittent sources easy to deal with.

And at scale, renewables are very reliable.

Transitioning to renewable energy requires changes in infrastructure and workforce skills.

Good. That means it will provide lots of good paying jobs.

but at this point in time, it is simply unreliable and under developed. It’s not about policy reform, it’s about reliability.

Let me break it down for you buddy. These problems don't ultimately mater, because we simply cannot afford to fuck around anymore. The literal monetary cost as well as the cost of people's livelihoods is way higher if we do nothing.

You have this unrealistic expectation that the solution must be flawless. The survival of our species very well may be at stake, and at a minimum the livelihoods of billions of people is at stake. We can't afford to be so picky. Millions, potentially billions will die.

Secondary point, the government is inefficient and under performing at almost everything they do and it’s up to the populous to get shit done.

That's like saying "fire extinguishers are terrible! They can't put out all fires, they're inefficient. We should instead use kids water guns from the dollar store"

The government is inefficient, but the population is far worse.