So you believe that you can just decide to pay yourself a 2% asset management fee and treat it a business because you want to ?
Yes, I do. 2% might be pushing it though. We've had several different reports on this forum of people doing exactly this, legally.
And it doesn't make you a "trader" it makes you an "investment manager".
Betterment (or any random local "financial guy") will charge you an annual fee to manage your money for you. They will decide on your asset allocation, rebalance periodically, tax loss harvest at the end of the year, and if you pay them enough they'll even collect your tax forms and file your taxes for you. These are all things you can learn to do yourself.
Basically, anything that you normally have to pay someone else to do, you should be able to pay yourself to do instead. It's not usually a good idea, because you have to bear the cost of operating a business and then paying all of the various taxes involved, but it's not impossible. In some rare cases, it makes sense to decrease your stash by paying extra taxes by operating as a business. It can be and has been done legally.