One of the arguments the OTT players are using is that these costs of infrastructure are actually borne by the end-users who have consciously upgraded their telecoms/broadband subscriptions in order to be able to get better quality and better user experiences from the internet services they like to use.
They also argue that obviously the system is working as telcos are still investing massively in infrastructure and are in general enjoying a good return for this. The users are happy as well, and they are paying more to the operators through higher usage and higher speed prices. And the OTT players are happy too, as improved infrastructure provides more and better business for them.