No. You shouldn't be ashamed of ANY language or technology, as long as you feel it's appropriate for doing whatever problem is put in front of you.

Also remember that at various times, PHP, Ruby, Python, Perl, COBOL, ColdFusion, literally anything made by Microsoft, Java, and countless other languages that solved plenty of interesting problems and both led to people getting paid but also improving and creating other things have been laughed at.

As a converse, plenty of people have made absolute garbage in any number of open source frameworks, "sexy" languages du jour, etc. either because they were working alone and didn't think they needed help or what they were working on wasn't remotely suited to the tool.

Ignore the haters. It's usually gatekeeping coming from lack of confidence and fear of real competition due to years of poor attitudes in our industry on what makes a "real programmer".