"The Conservative Party wins elections by using the progressive split in their favour, usually with less than 37% of the popular vote. This has left the remaining 63% of Canadians – progressives – out of the government for 3 consecutive elections"

http://www.strategicvoting.ca/

Of course you like everyone else are entitled to their own opinions.

And for the record, provincially I strategically voted for the NDP in 2018 as they were ahead in my riding.

Likewise if Greens are ahead in your riding then you should vote Greens (in my opinion)