Theres no heart left in the game.
I'd agree with that, these days all people care about is making army x more competitive than army y and labeling army z as being useless, actually playing the game just for the sake of playing stopped LOOOOOOONG ago
is There something wrong with wanting to win every game?
absolutely not, but there is something wrong in expecting to win every game and acting like a dickhead when you don't, which unfortunately is becoming more common.
- What are your thoughts about restrictions and army building selections systems? Do you use them?
there are already restrictions and building selections, your restriction is the points, your selections are the FOC, restricting anything else is usually followed by a piss poor reason as to why usually centered around "I can't beat X, X must be banned"
- Do they improve the game or do they make it into something else?
they create something else, and help to further tip the extremely unbalanced nature of 40k even further
- What makes you love your army and what motivates your army building?
I love my army because its Tanks (NOT TRANSPORTS!!!)
and I love tanks, I also love it because its themed, but nowhere near competitive, armoured companies/battlegroups are about as competitive as a baby fighting a gorilla, its designed for fun, the most important aspect of any wargame.