Instant Game Found For A Secondary Role Shouldn't Exist

Basically the title. I feel your primary role should be exclusively searched for for a reasonable amount of time before settling on a secondary role. Not too long, I only mean a minute or two, maybe make it an adjustable setting to an extent. The reason I bring this up is because I genuinely consider support my second best and second favorite role. Key word second, and I get upset when I queue up and instantly find a match as support time and time again. This has caused me to stop playing support all together for a long time and put a secondary role that I'm not as good at in an attempt to get my primary. I wouldn't mind nearly as much if I felt an actual attempt was made to get me my primary and I'm sure many other people feel the same way.