I think perhaps the anger you get thrown at you is due to not understanding that being born in the post war boom gave you massive advantages over people born in, say the late 80s/early 90s. I am jealous in some ways of people born in this era as I feel like many things were easier for them.
I feel like I have worked hard- I worked hard at school and got decent grades, I was lucky to get some short term jobs and worked hard at them in order to save up and afford to go to uni- I still came out of uni in debt and will probably be paying back that debt for the next 25 years. I am lucky to have found a job, but many people I know have not found secure/full time employment, and I had to move across the country to find a job. Even then, I have accepted I will probably never be able to afford to buy my own house.
I don't personally hate landlords, my current one seems ok, and my previous one was nice- but equally there are a lot of crap landlords making a fortune and precious little is done about them. Equally, there are crap tenants too- I blame the government though, as they are the ones who should bring in better laws to govern renting.
So yes, I am jealous, and I do sometime moan about it- maybe that is some kind of moral failing on my part, but it seems more like a natural emotion tbh, when I know a lot of the things previous generations took for granted will likely never be available to me.
So YANBU to think people are jealous but YABVVU to think that it is possible for the current generation to get everything your generation got just by working hard.