2. HSR links communities
Not true, in the sense that HSR only links the biggest cities and offers only 7 stops. This is fine as a "virtual airport" network, does a great job of moving large numbers of people terminal to terminal as a "backbone". but it does very poor job of serving communities along the way. And, the very small number of stops creates a huge first mile/last mile challenge. Consider the disjointed transportation network that connects Ontario communities to Trudeau and Pearson Airports....HSR does nothing to fix that (although co-locating HSR with regional rail and urban transit does improve on connectivity, also despite adding some recent new airport transit lines, airport connectivity is generally very weak and might be improvale at very low cost eg buses).
There is a second parallel need for regional and local transportation building.... does HSR inhale all the available capital, or will there be a second parallel expense to be budgeted and planned? Canada can only afford so much.