If the VAT rates went to 0% you would still get to keep the exact same amount as with the current 25% rate. And when discussing B2B prices VAT is never included, as it is generally not an expense for the company but rather just an accounting detail.
Basically it's very similar to debates about US taxes. Sure, it's not 70%, but things add up quickly. Income tax, social security, medicare, medical insurance, sales tax. The usual argument is "but, but ... it's not me who is paying my medical insurance or half of social taxes, it's my employer, so it's not my tax". Well, it is. That's the money your employer would have paid _you_ if those taxes hadn't existed.
Not to mention, things that fall outside of capital / income taxes which increase the overall percentage in sneaky ways in the US: car registration fees, the death tax, property taxes, student loan repayments (depending on your view of subsidized university).