Contractors aren't hit hard enough, let's add a dividend tax. Contractors aren't hit hard enough, lets hit them harder with dividend tax. Contractors aren't hit hard enough, let's largely eliminate their ability to use a National Insurance rebate. Contractors aren't hit hard enough, let's largely eliminate the ability to use Flat-Rate VAT. Contractors aren't hit hard enough, let's try to push more of them inside IR35 and leave them without the protections of employment but with at least as high taxation (if not higher as they'll have ended up paying the employer's NI as well).
At some point you'd hope the government will realise that it's been bashing the same group year in year out and it might actually be fairer to target a different group for a change. Or that it costs businesses who end up paying higher contract rates. Or it blurs the lines between permanent and temporary staff until companies will hire people as 'permanent employees' instead but just the role after 6-18 months and leave employees with less job security than ever before.
Instead, it looks like contractors are the pantomime villains in the government's eyes and any increase in tax on them will be painted as a Robin Hood-style redistribution from the rich to the poor while simultaneously reducing wealth (rather than income) taxes.