Taxes are bad, any reduction of them is good for the economy. All tax breaks are tax breaks for the rich, the poor do not pay taxes.
Even if you go for a flat tax rate or want to eliminate all taxes, the rich will always have their taxes reduced by more. If I could afford a Ferrari, I will pay $250k * 10% in taxes. If I am poor, I will buy a piece of shit and pay $2500 * 10%. If someone eliminated sales taxes, the media would still say: hey the rich guy got their taxes reduced by $25000, and you only got $250, get the pitchforks.
In the US, approximately 80% of the Federal Revenue is paid by people making over 250k, 90% of it is paid by people making over $1M.
Reagan cut marginal taxes from 73% to 28%, the US saw the greatest economic recovery followed by the greatest income growth (20%/year) until Clinton destroyed the dotcom era with taxes, regulation and interest rate shenanigans.
Thatcher cut marginal taxes from 80% to 60% and although not as great as the US, it did start an economic recovery that lasted until Tony Blair “redistributive economy” hiked taxes by an estimated GBP2000/person/year (even at the low end) which doubled interest and inflation rates.