Hi from Tasmania, I’m 2 years post esophagectomy and cannot only swallow normally but eat moderately large meals without symptoms associated with dumping syndrome. The dysphasia you currently experience is likely (but not guaranteed) to improve with chemo / radiotherapy and after a period of recovery, return pretty much to normal postoperatively. I’ll stress there are no guaranteed outcomes but your concerns about the need to chew excessively for the remainder of your life are unlikely to be a major issue. The challenge ahead from my experience is getting through the treatments and surgery. Getting and maintaining optimal fitness is very important in progressing through the challenges ahead.
Best wishes with your treatment. Geoff