The parent poster is right in that pure fructose is probably worse for you than an equivalent amount of pure sucrose. But the way that fructose is delivered to your body by digesting fruit - slowly, and in conjuction with other materials, in a way that we have evolved to tolerate - is entirely different from eating the pure chemical.
The amount of fruit you’d have to consume to ingest unhealthy levels of fructose is astronomical. Worrying about whether fruit is unhealthy is most likely causing you more harm than the fructose in fruit. Don’t worry about eating fruit.