Because games are dumbed down for console gamers, many games have been made easier for them because they are the more wider audience. Just go play Saints Row 3, it's console roots show by putting arrows everywhere, even to the point where the arrows show up on the road like a arcade racer.
I'm not saying console gamers are thick, I'm just saying games for console gamers are a lot more dumbed down and easy. play Gothic 3 and I'll see why Gothic 4 got dumbed down for consoles and people hated the devs for it, amongst other things
You're arbitrarily pinpointing certain streamlining choices on consoles with absolutely no evidence. Where are you getting this from? Explain, then, the majority of historical console games that do no such thing. Explain Demon's Souls and Dark Souls (arguably among the most challenging modern games... both being console exclusive and stemming from a line of challenging From Software PlayStation RPGs beginning around 1994). Where is the connection between streamlining decision and platform made? What of the popularity of, say, World of Warcraft as a PC-exclusive title? Is that pure evidence of some unbridled difference in taste of depth or difficulty based on platform?
Did you know the annual Call of Duty release is one of the best-selling, if not the best selling, titles on every platform (PC, PS3, 360) each year? Did you also know that the market, regardless of platform, all seems to revolve around similar games? There are few exclusives anymore and despite the baseless claims of any "dumbing-down" being connected to consoles (a clearly flawed and ignorant thought from one who likely doesn't have much background in terms of console-owning or playing experience), games that are supposedly "dumbed-down" see similar percentages of sales across all platforms. Platform doesn't dictate taste beyond influencing a bit of a bias for, say, Halo with Xbox players, JRPGs with PS players, and strategy games or MMOs with PC players, but for the most part, single-player WRPGs, shooters, action games, etc. tend to sell well on all platforms. There is no established connection between consoles and being dumbed-down. It's absolute rubbish.