Protecting pensions from politicians - or preparing for a Labour coalition

It is not hard to remember Gordon Brown's first tax raid - his pension tax was one of the big reason that final salary pensions were stopped and many existing schemes are underfunded.

I can't see the much further left Momentum crew not planning something much more draconian - especially as higher taxes for top earners would otherwise see even more incentives for income diversion into pensions. And of course his backers in the public sector unions are protected with the only remaining final salary schemes so a win win for the union barons.

So highly likely is a removal of higher rate tax relief
Also likely is a reduction in the lifetime allowance and no indexation

What else?
The high annual isa allowance could be cut (ordinary people can't save 20k pa) and the lifetime isa helping those who can save doesn't really fit with Labour values.

And what about the tax free lump sum, doesn't seem very progressive so could it he stopped altogether or perhaps capped at say 50k

And if things go badly weong how about the Hungarian example where private pension pots were 'nationalised' i.e. confiscated.

So what is the answer - stuff isas now? Bitcoin and physical gold?!