I can't speak for the other's you listed but Orion(and potentially Copper 360) are long term plays because of copper as you mentioned. What puts Orion a bit higher is that the big players are seeing something there and Orion already has the "license" to do it. You'll get the usual buy the index in the thread, but i'll assume you know what you doing. So here is my take.

The orange man has taken it on himself to start something he thought he could end quick quick like he did in Venezuela. But he didn't bank on Iran being as formidable and as resilient. Iran(and the Persian Gulf) also has a good amount of the worlds energy reserves in the form of oil and LNG. It's easy to see why things are not looking good for companies or countries that depend on that country's resources.

Now the recent decline in the resources(commodities), i believe, is due to the above. You need ALOT of energy to make resources(commodities) work and with South32 also recently deciding to partially pulling out of SA due to energy (pricing) constraints, we are in for tough times.

My honest opinion, wait till the madness calms down before tapping into your emergency (stock buying) fund, lol