Sorry to hear this.
Stage 2 means it is still localised, right? It may have been found in time and is treatable.
I don't know about your uncles cancer or what stage it was but not all cancers are the same and some are very treatable. In one type of cancer, survival after 5 years is 99% for stage 1, 95% for stage 2, 50-6i% for stage 3 etc. Stage 2 can be a very winnable battle. Even stage 3 can be a worthwhile battle.
You may be avoiding a very winnable battle in which you can have a long and enjoyable life after some short term discomfort. Some cancers can he treated in a localised manner with radiotherapy rather than chemo.
I implore you to verify what the treatment options are and success rates before making a hasty and final decision.
A relative of mine came back from stage 2 doing pretty well and is pretty happy after a year of treatment. Some of it obviously a little challengeing, but they have no regrets.