When it comes to the discussion of responsible tourists, people's view points differ vastly, rendering this issue the highest complexity.
You should be more specific about who this responsible tourist. Introduce him, otherwise reader would wonder who that guy is.
Some people argue that tourists should take responsibility to protect the place, not only in the environmental facet, but also to the extent of culture,
... this sentence contains too much verbosity. Do not complicate sentences with too many words unnecessarily. Tell things simple and straight. Also, this is not actually your prompt speaks about. It says;
Being a "responsible tourist" has been paid attention to protect both environment and cultural of the place visited, while someone believe it is impossible to be a responsible tourist. To what extent do you agree or disagree?
... It defines who the responsible tourist and say some people view that it is impossible to be a responsible tourist. It is something different to what you said above. This topic revolves around the responsible citizen. Always stay with the prompt.