Is it also unethical to not read the ads in a newspaper? Or to not watch the commercials on TV?
Doesn't it also undermine producers ability to produce if you just get really good at quickly looking away?
It seems from your argument the "case could be made" that it's at least a little unethical to not spend at least a little while paying attention to each ad when reading a newspaper.
Like there's some scale where the left side has "0 attention spent, 0 ethical" and the right side has "maximum attention spent, maximally ethical".