Not sure I follow what you are saying mate, I’m not against other countries subsidising their own industries that’s up to them, if their subsidised products are unreasonably cheap though to the point they’d threaten British jobs then I’d impose a tariff on them so their product would be the same price as the British product. If they had used cheap labour then there’s a good chance their product would be substandard anyway.
You were saying we could impose sanctions on Chinese for steel dumping but think we should be able to subsidize uk Companys.
I noticed this point being made by the Torys as well, pointed it out at the time to people who supported Brexit, how they tore into the extreme lefts ideology on us subsidizing inefficient company's while cheering on Johnson when he said we will be able to subsidize UK companies due to Brexit, what's it got to do with other countries what we do, that's our business, that's true for services like the Railways and the NHS etc but it becomes their business as soon as we try to export those goods into their country's, why would we want to permanently subsidize a inefficient uncompetitive company's anyway.
The most important point that has to be clarified is what exactly do you mean by State subsidies, is it a short term help of maybe a couple of years, I would call that State aid. EU would have no problem with that and would be even more sympathetic if the Company was based in a deprived area which would be devastated if company went under.
Are the subsidies you support permanent. given to prop up a inefficient company that can't compete without being propped up by the State.
The EU would hammer us with Sanctions, the WTO have a problem with State subsidization as well.