"This is dubious. Care to elaborate what you mean by that?"

I meant mainly the existing status quo as you elaborated in the following sentence.

"there's never ... a need to start a new project in C++. Almost any alternative option is better."

I agree that for a lot of things C++ is the wrong language. For some use cases, such as libraries supporting real time graphics on multiple platforms, I'm not yet sure if yet there are better options (well, there is C but I'm pretty sure that arguing which is better of those is a matter of taste and experience).