Does Europe have enough gas and oil to extract that it would be profitable and allow them to rely significantly less on importing them?

If Europe did not stop issuing licences and if we did not ban exploration, then we could probably be extracting close to double the amount of crude domestically compared to what we are currently extracting. If we did not ban fracking we could also be extracting significantly more Gas domestically. If Germany did not switch from nuclear to gas then we would also have lower demand in fossil fuels. If we went for the only viable green energy source we have, which is Nuclear we could have also significantly reduced our dependence on fossil fuels.

Instead, we went in for the Green energy scam which has not made our energy cheaper or more reliable and has not significantly reduced fossil fuel dependence and has made us totally dependent on the foreign suppliers and manufacturers. We don't even want to produce the windmills and solar panels domestically.

All of this is insane, and if the US stops underwriting our security we cannot survive. Yes sure, the European economy is better than Russia's economy, but most people in Europe has no interest in fighting in a defensive war, so if Russia with the backing of China actually does challenge us we are likely done for. Russia's money also stretches much further than ours, and they don't have to worry about their approval ratings if they mobilize their military because they are not a democracy. No German government will remain in power if they mobilize.

And let's not forget that our Nuclear umbrella providers, France and the UK, both seems on the brink of internal collapse with repeated riots and high levels of disaffection by the vast swathes of their imported populations that feel absolutely no sense of belonging with the host population and countries, and high levels of resentment and disgruntlement of the native populations with the utter failure of centre-left governance.

I really don't understand how anyone seriously believes that if the US withdraws support for Europe that France and the UK will actually go to war to defend any other European country, never mind themselves. They are much more likely to just immediately collapse internally.

All of this is deeply shameful, and it was us Europeans that chose this vassalage. We have to start choosing better. We can be the dominant power in the world. We can be the hegemony, a much better one than the US, if we get serious and choose it.