While I partially agree, I think it's for different reasons.

Mostly those being "you cannot accurately predict how taxing will play out."

But "poor or middle class" people choosing $2 soda over $3 orange juice... might choose $3 orange juice over $2 soda that has a $2 tax slapped on it. You cannot argue "they'll just keep buying the same thing when it's taxed all to hell."

(Orange juice probably isn't much better than soda, but that's not the point of my argument.)

Sugar is not "literally in everything." Not for the dictionary meanings of "literally" and "everything." Though it does seem that yes - the corn industry, especially HFCS should not be subsidized... the exact opposite of taxing! So repeal those subsidies, and maybe put taxes on HFCS at the industry level (rather than the consumer level). If industry, rather than the government, want to foot the bill for HFCS and sell it at a loss, then at least we've shifted the problem.