Being a 1960s or 1970s home, I would be getting a full asbestos survey before commencing work, I would imagine the house would be riddled with the stuff, unless it’s had it removed
Get an Asbestos surveyor to come and sample it, loose fill insulation can contain asbestos. It should be a legal requirement ( Just like commercial property) to get an asbestos survey report and you would know where the asbestos is if any
Asbestos cement is considered safe is undisturbed and is not friable, and isn't likely to release fibres, however all Asbestos is dangerous even the white type. Bear in mind, that older cement sheets sometimes used Blue asbestos
If you are a hard core socialist no doubt he will appeal to many. However, I fear he will harm small business and slap more tax on them. The conservatives are far from perfect, but I trust them more on Business than Labour do.
Because builders often stockpiled ACMs, there is always a risk that old stock could have been used. If you are planning on disturbing it I would get it sampled for peace of mind.
Problem with Brexit is there is no centre ground, you either want out or to remain. A second referendum is very divisive. I hope these EU election results restore order, and we can just get on with Leaving with our without a deal.