Taxes, on the other hand, are completely skewed in favor of consulting. Look at 401k contributions, for example. The limit for your contribution is the same, but your company can contribute a lot more on top of that. And talk to your accountant about how you decide on your salary; that's an important number and it's not straightforward to decide what it is. (It's certainly not your entire income)
The IRS now has a 20% deduction for passthrough entities up to 450K or so
You can put approximately 40K or 25% of income (whichever is less) into a solo 401K. Much more than a typical company 401K
There are ways to pay no FICA, by distributing through a limited partnership. You can save 15K up to the cap on those taxes, but then you will hurt your social security which requires 40 quarters of W2 wages to max out.
Healthcare will potentially cost more, but once you have around 6 employees you can join a PEO and get grouped in with other small business and get a typical cost for a business.
There are products (such as insurance ) that can shield a much larger portion of your income. For example, you buy income insurance that pays out any year you take a loss. You "pay" for it with your profit for that year. That counts as a business expense so you pay no tax on it. They keep track of your account balance+growth and you can borrow from your own account with no tax consequences. You can essentially withdraw the money at favorable tax rates if you ever take a loss.
It can be difficult, but it's not that bad.
Some clients prefer a simple bill and clear mental model of the costs. I make (slightly) more money on the bills in which I don’t break out my expenses than the ones that I do.