The scale of this will mean everyone will be paying for this crisis, there simply aren't enough top earners. Earners from £12,000 p.a upwards aren't going to get away with this.
Tax hikes for the rich isn't right wing scaremongering at all. Major corporations will chose to set up head offices and employ staff in countries with more favourable tax regimes.
It's been proven time and time again that lowering taxes, results in higher overall tax revenues - up to an optimal point and then then start to fall again (Arthur Laffer proved this theory).
There is also an argument to say that our government may have gone (slightly) beyond the optimal point to maximise tax revenues - making any further cuts to corporations counter productive.
France and Germany also don't have this Brexshit shambles to deal with.