No, you are just oversimplifying the issue. Of course, if you were regularly riding before and very fit and change to an e-bike out of laziness, the net effect might be negative, tho even that part is not conclusively proven.
But if you found biking way too exhausting, maybe living in a hilly area, riding an e-bike is ten times better than doing nothing. Would it be even better to ride a non-e-bike? Maybe. Would it happen? Probably not.
But if you found biking way too exhausting, maybe living in a hilly area, riding an e-bike is ten times better than doing nothing. Would it be even better to ride a non-e-bike? Maybe. Would it happen? Probably not.