Rwndk1, I do not know where you live or how you define DL. In my yishuv community there is a variation but the extremes are not numerous and the left extreme are virtually all young people who have one foot into the Chiloni world (unlike the Chareidi community, which pushes kids away with both hands for much more minor deviations the DL community tries to keep them in as much as possible so that they will not wind up like Gehazi and Yushki – see Sanhedrin 107b decensored edition). The vast majority of the women cover their hair, wear long sleeves (or at least to the elbow – which the Mishna Berura allows) and long skirts (actually I heard that in Mea Shearim they banned skirts to the ground as a “Mizruchnik” custom). Some have TV but my impression is that most do not, or if they do only in the parents’ room). I do not know about Internet but it could be that those who do not general filters (as opposed to specific filters such as Adblock) were frustrated with their overkill (I have had sites blocked because of normal words that have groups of letters that also form “flag” words).
The fact of the matter is that there is no one DL hashkafa or lifestyle. There are many, each with its own nuances (Merkaz, Har HaMor, Bar-Ilan, kibbutzim, moshavim, etc.).
As for the Chareidi yeshivot and seminaries to which you send your children, they are getting the disadvantages of no secular education, an anti-work hashkafa and ingratitude towards the state that subsidizes them. So don’t judge peopel just because they sin differently than you.