Insofar as a "pro-labour" position exists in practice it has to be anti-globalist. If pro-labour is going to mean something it has to mean trying to get labour a better deal than a free market would offer, otherwise it isn't really taking a position on labour at all. A key part of globalism is it makes it impossible for labour in any given country to avoid being paid the market price for their labour.

Environmentalism is similar. Globalism fixes the amount of pollution globally to the market optimum where presumably an environmentalist wants to control pollution using some other system than markets.

You seem to be arguing that globalism makes the world better off. I agree, but that is because pro-labour and pro-environmentalist ideologies are pretty explicit that they aren't trying to maximise the general welfare. A situation where one soul works very hard and happily for little pay making things for everyone else could be a good outcome for everyone (see also: economic comparative advantage). The pro-labour position would resist that outcome on the basis that the labourer is not making very much money. And the environmentalist would probably be unhappy with the amount of pollution that the hard work generates. The globalist would call it a win.

Globalism as an ideology is distinct from globalization of trade. Globalists would argue for expansive supranational regulatory controls. Migration and alleged environmental concerns are typical rationalizations for their expanding powers. The distinction is better understood as between a set of liberal, laissez-faire trade policies and an emerging illiberal supranational regulatory state.

Specifically when you say:

>Globalism fixes the amount of pollution globally to the market optimum where presumably an environmentalist wants to control pollution using some other system than markets.

We can observe that the Globalist organizations regard not just pollution, but carbon consumption to be something which markets cannot be trusted to manage. Instead they propose top-down regulatory management on a supranational level.

https://www.imo.org/en/mediacentre/pressbriefings/pages/imo-...

> If pro-labour is going to mean something it has to mean trying to get labour a better deal than a free market would offer, otherwise it isn't really taking a position on labour at all

I think you're assuming here that 'a better deal' means 'more money than someone else', whereas lots of people would define it as 'everyone has more rights/security'.