Yeah, no. This is a butchery of Tolkien's work. It hasn't earned the right to call itself The Hobbit.
Dwarves and Elves do not get along. Legolas and Gimli's friendship was the first amicable relations the races had had in literally millenia. The Three Runners were an absolute first in all the ages of the world.
There was no reason invent Tauriel for the film (or, for that matter, to have three films in the first place). Inserting the "romance" was just further nonsense.
Heck, even as an original character, she's pretty awful. "Let's make a new character to have a female character, and her sole purpose will be 'deep insights' and a taboo romantic relationship". In other words, every bad OC in every fanfiction piece ever.